Question:
Pipe P can fill and empty tank in 4 hours but pipe Q can completely empty the same tank in 8 hours. But the pipes were opened alternately after every two hours starting with pipe P then in how many hours, the tank was completely filled ?
6 hours | |
6 hours | |
10 hours | |
5 hours |
Answer:
10 hours
Last Updated:
09/11/2021 - 20:08